scholarly journals Measuring the scales of segregation: looking at the residential separation of White British and other schoolchildren in England using a multilevel index of dissimilarity

2017 ◽  
Vol 42 (3) ◽  
pp. 432-444 ◽  
Author(s):  
Richard Harris
Keyword(s):  
Index Of Dissimilarity

Understanding the Standardized Index of Dissimilarity: Reply to Massey

1978 ◽  
Vol 43 (4) ◽  
pp. 590 ◽  
Author(s):  
Charles F. Cortese ◽  
R. Frank Falk ◽  
Jack Cohen
Keyword(s):  
Standardized Index ◽  
Index Of Dissimilarity

Stieltjes classes for moment-indeterminate probability distributions

2004 ◽  
Vol 41 (A) ◽  
pp. 281-294 ◽  
Author(s):  
Jordan Stoyanov
Keyword(s):  
Probability Distributions ◽  
Classical Problem ◽  
Inverse Gaussian ◽  
Positive Order ◽  
Power Transformations ◽  
Log Normal ◽  
Open Question ◽  
Indeterminate Probability ◽  
Index Of Dissimilarity ◽  
Finite Moments

Let F be a probability distribution function with density f. We assume that (a) F has finite moments of any integer positive order and (b) the classical problem of moments for F has a nonunique solution (F is M-indeterminate). Our goal is to describe a , where h is a ‘small' perturbation function. Such a class S consists of different distributions Fε (fε is the density of Fε) all sharing the same moments as those of F, thus illustrating the nonuniqueness of F, and of any Fε, in terms of the moments. Power transformations of distributions such as the normal, log-normal and exponential are considered and for them Stieltjes classes written explicitly. We define a characteristic of S called an index of dissimilarity and calculate its value in some cases. A new Stieltjes class involving a power of the normal distribution is presented. An open question about the inverse Gaussian distribution is formulated. Related topics are briefly discussed.

scholarly journals Carabus (Coleoptera: Carabidae) assemblages of native forests and non-native plantations in Northern China

2004 ◽  
Vol 15 (3) ◽  
Author(s):  
Xiao-Dong Yu ◽  
Tian-Hong Luo ◽  
Hong-Zhang Zhou
Keyword(s):  
Northern China ◽  
Abundant Species ◽  
Oak Forest ◽  
Larch Plantation ◽  
Clear Cutting ◽  
Native Forests ◽  
Broad Leaved Forest ◽  
Forest C ◽  
Index Of Dissimilarity ◽  
Leaved Forest

The effects of non-native plantation established after clear-cutting were studied in Dongling Mountain region, Northern China. Pitfall catches of Carabus beetles from a non-native larch plantation were compared with those from two native forests, an oak forest and a mixed broad-leaved forest. More individuals were captured from the mixed broad-leaved forest and the larch plantation than from the oak forest. For the threemost abundant species in this area, C. crassesculptus peaked in abundance in the mixed broad-leaved forest; C. manifestus peaked in the larch plantation, and C. sculptipennis in the oak forest. Measured by PcoAusing Bray-Curtis index of dissimilarity, species composition of the larch plantation was different from the two native forests, but overlapped remarkably with them. All the three abundant species showed a similar positive relationship between local distribution and abundance. Captures of abundant species were clumped within the forest, but the extent of aggregation among forests was different. Monthly catches of total Carabus, and C. crassesculptus alone, peaked in June–August in all the three forests, but C. manifestus peaked in June and again in August. Our results suggest that the planting of non-native larch does not have a detrimental effect on Carabus assemblages in general, but it changes the spatial distribution and abundance compared to the native forests.

Index of Dissimilarity

2015 ◽  
pp. 1-3 ◽  
Author(s):  
Gaston Yalonetzky
Keyword(s):  
Index Of Dissimilarity

Notes on the Index of Dissimilarity: A Research Note

Social Forces ◽  
1980 ◽  
Vol 59 (1) ◽  
pp. 275-280 ◽  
Author(s):  
B. Kestenbaum
Keyword(s):  
Research Note ◽  
Index Of Dissimilarity

scholarly journals The calculation of the index of dissimilarity on a computer terminal

1975 ◽  
Vol 7 (4) ◽  
pp. 380-380 ◽  
Author(s):  
Jerry W. Wicks
Keyword(s):  
Computer Terminal ◽  
Index Of Dissimilarity

The Analysis of Occupational Gender Segregation Over Time and Place: Considerations of Measurement and Some New Evidence

1993 ◽  
Vol 7 (3) ◽  
pp. 335-362 ◽  
Author(s):  
Robert M. Blackburn ◽  
Jennifer Jarman ◽  
Janet Siltanen
Keyword(s):  
Occupational Segregation ◽  
Gender Segregation ◽  
New Approach ◽  
Overall Stability ◽  
Occupational Gender ◽  
Gendered Occupations ◽  
Occupational Gender Segregation ◽  
New Evidence ◽  
Index Of Dissimilarity ◽  
Cross National

Despite the importance of occupational segregation as an area of investigation concerned with understanding women's employment status, pay levels, and promotional prospects during the last 20 years, there has been relatively little attention paid to the problems of trying to measure segregation levels in quantitative data. This paper argues that there are serious measurement problems which it illustrates by showing that two of the principal indices, the widely-used Index of Dissimilarity and the OECD's WE Index are highly flawed and produce unreliable results. It demonstrates the importance of these deficiencies using cross-national data from 9 countries for the period 1970-1982. The paper introduces a new way of analysing the form of these indices in the Basic Segregation Table, which is a 2 x 2 table of gendered occupations by sex. The paper suggests a new approach to measuring occupational segregation which provides more consistent and valid results. This is called Marginal Matching. The paper ends with an analysis of occupational gender segregation in England and Wales from 1951 to 1981. It concludes that, in contrast to research claims to date, the trend in segregation over this period is one of overall stability.

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